body {
    overflow: hidden;
    margin: 0;
    padding: 0;
}

.loader {
    border: 12px solid #f3f3f3;
    border-radius: 50%;
    border-top: 12px solid blue;
    border-bottom: 12px solid blue;
    width: 80px;
    height: 80px;
    -webkit-animation: spin 2s linear infinite;
    animation: spin 2s linear infinite;
}

@-webkit-keyframes spin {
    0% {
        -webkit-transform: rotate(0deg);
    }
    100% {
        -webkit-transform: rotate(360deg);
    }
}

@keyframes spin {
    0% {
        transform: rotate(0deg);
    }
    100% {
        transform: rotate(360deg);
    }
}

#loading {
    display: flex;
    justify-content: center;
    align-items: center;
    height: 100vh;
}

#serverLog {
    position: absolute;
    width: 100%;
    height: 100%;
    display: none;
    overflow: auto;
}

.expressApp {
    display: flex !important;
    position: absolute;
    width: 100%;
    height: 100%;
}

.expressAppHide {
    flex: 0 1;
    width: 0px;
    height: 0px;
}